Buffer roll device



July 6, 1965 E. s. STEVENS BUFFER ROLL DEVICE Filed July l, 1965 lllll H7//JZ//Z /V/A/X/ Uhligl .1

United States Patent O 3,192,606 BUFFER ROLL DEVICE Eric S, Stevens, Muskegon, Mich., assigner to Brunswick Corporation, a corporation of Delaware Filed July 1, 1963, Ser. No. 291,669 4 Claims. (Cl. 29-113) This invention relates to a roll device, and more particularly to a roll for removably mounting a floor treating sleeve.

A primary object of this invention is to provide a new and improved -roll device.

Another object is to provide a new and improved roll device for releasably holding a sleeve operatively positioned on the roll.

A further object is provision of a new and improved roll device having an articulated roll shell with outwardly expandable means for holding la sleeve on the roll.

An important object is provision of a new and improved roll device having a roll shell with relatively movable sections and operable for holding a sleeve wrapped around the roll.

A more specific object is provision of a new and improved roll device particularly suited for use on bowling alleys or the like, and receiving `a floor treating sleeve around a roll shell defined by a pair of opposed roll halves, each half having at least one bracket fixed interiorly thereof, the brackets being connected for -movement of said roll halves toward and away from each other, and cam means on the roll for operating the brackets. A related object is to arrange said cam means and brackets so that said roll shell is contracted to an out of round position when said cam means is moved in one direction in order that said sleeve can be slipped over said roll shell, and so that said -r-oll shell is expanded into holding engagement with said sleeve when said cam means is moved in the opposite direction.

Other objects and advantages of the invention wil-1 become readily apparent from the following detailed description taken in connection with the accompanying drawings, in which:

FIGURE l is a fragmentary longitudinal central sectional view of a preferred embodiment of the roll shell;

FIGURES 2, 4 and 5 are transverse sectional views taken geanerally along the line 2 2, 4 4 [and 5 5, respectively, in FIGURE 1;

FIGURE 3 is a transverse sectional view, similar to FIGURE 4, but illustrating the roll device in unlocked position; and

FIGURE 6 is a fragmentary, enlarged sectional view taken generally along the line 6 6 in FGURE l or 4.

While lan illustrative embodiment of the invention is shown in the drawings and wil-l be described -in detail herein, the invention is susceptible of embodiment in many different forms, and it should be understood .that the present disclosure is to be considered as an exemplication of the principles of the invention and is not intended to limit the invention to the embodiment illustrated. The scope of the invention will be pointed out in the appended claims.

The invention is, in brief, directed to a roll device, and -a preferred embodiment is illustrated in the drawings in the form of a roll device particularly suited for treating bowling alleys or the like. The roll device includes a roll shell about which a floor treating sleeve may be slipped and releasably held thereon by the outward pressure of :a pair of relatively movable sections of the roll shell. In the illustrated embodiment these roll sections are pivoted to each other, and means is provided for operating the roll sections and moving them between contracted and expanded positions.

ICC

Referring to the drawings, a roll device includes a roll shell 10, which in the illustrated embodiment is genervally cylindrical about a longitudinal axis 11. Roll shell 1d has an outer peripheral surface 12 which receives surfacing means comprising a pad 13 in the form of a felt like cloth, in facial engagement with roll shell periphery 12, and another -sleeve 14 (shown dotted for clearer illustration) of suitable material as determined by the intended function of the roll, and herein outer sleeve 14 is illustrated in the form of a suitable polishing cloth. Pad 13 extends around shell 10 and has end portions defined by alternate interttting spaced apart sections 15 and 1S', the purpose of which will herein- ,after become more fully apparent. In theillustrated embodiment roll shell 10 is defined by sections, and more particularly by opposed relatively movable roll halves Z6 and 21. Roll halves 20 and 21 have adjacent edge portions 16 and 17, and 22 and 23, respectively, defining irst land second pairs of diametrically opposed edge portions. Edges 16 and 17 are provided with alternate interiitting spaced apart fingers 16 and 17 which correspond to pad sections 15 and 15', which together cooperate to allow roll shell 1t) to be collapsed to an out of Vround position, as shown in FIGURE `3, so that the `sleeve 14 may be slipped over the roll shell.

Aotuating means is provided for movement of halves 24) and 21 toward and away from each other between the expanded position shown in FIGURES 2, 4 and 5, and the contracted position shown in FIGURE 3. As illustrated, such means is provided by a series of interior transverse brackets 26 :and 27 fixed, respectively, to roll sections 2) and 21 in any suitable manner as by welding or riveting a flange 26', 27', on each bracket rigidly to the internalwall of the roll section. Reinforcement members 26a and 27a may also be provided if desired in the roll h-alves intermediate the brackets. A first shaft 29 is received within the roll and in the illustrated embodiment extends generally longitudinally thereof near roll edges 22 and 23. This shaft is fixedly mounted at its opposite ends to supporting members 30 at either end of roll 1d, in any suitable manner as by reduced end portions 31 of this shaft extending through openings in respective support members Sti with nuts 32 securing the shaft to the support member. Shaft 29 extends through journals 33 in each of the brackets Z6 and 27 so that these brackets are pivotally mounted on the shaft.

Cam means is provided for moving the roll sections toward and away from each other, as previously .descrbed. Herein this means is in the form of a cam shaft 35 extending generally longitudinally through roll 1G near edges 16 and 17. Gpposite ends of cam shaft 55 are received in journals 36 in supporting members 3d for rotation of the cam shaft. As may best be seen in FIG. 6, cam means, here in the form of pairs of diametrically opposed cams 4d and 41 are mounted on the cam shaft for rotation therewith. Cams 4d are operatively associated with brackets 26 and cams 41 'are operatively associated with brackets 27, and more particularly with opposed follower surfaces 42 and 43 deiining the periphery of an opening in these brackets receiving the cams .and cam shaft. The cams may be of any suitable shape, and as mentioned previously are diametrically opposed, such that the brackets 26 -and 27 and the associated roll halves 20 and 21 are moved outwardly into the expanded position shown in FIGS. 2, 4 and 5, when the cam shaft 35 is moved in one direction by a handle 45 pivoted to one end of the cam shaft.

Upon rotation of the cam shaft in opposite direction, roll halves 2t) and 21 are contracted to the out of round position shown in FIG. 3 so that sleeve 14 may be slipped over the roll shell. In the illustrated embodiment cam shaft 35 is rotated about 180 degrees in operating the roll halves between their locked and unlocked positions.

Means is provided on at least one of the supporting members 30 for mounting the roll device on a support for rotation about its longitudinal axis 11, and for rotating the roll. Herein this means is in the form of journals 48 for receiving a mounting shaft (not shown), about which the roll rotates, and lugs 49 extending outwardly from the body of each supporting member for engaging suitable driving members (not shown), the mounting shaft and driving members being part of a suitable support. It should be particularly noted that the support for the roll device forms no part of this invention and journals 4S and lugs 49 may be modified, replaced by other suitable means, or eliminated if not required.

lt should also be noted that pad 13 may be adhesively secured to roll periphery 12, or may be detachably carried thereby in any suitbale manner, or if found desirable it may be eliminated entirely.

I claim:

1. A roll device comprising, a pair of opposed relatively movable roll halves, the periphery of said roll halves collectively defining a generally cylindrical roll having a central longitudinal axis, a closely fitting cylindrical floor treating sleeve on4 said cylindrical roll, means pivotally connecting said roll halves on one side of said longitudinal axis, and cam means associated with said roll halves on a diametrically opposed side of `said longitudinal axis for moving said roll halves -to positions where the exposed peripheral area of said roll halves is substantially less than the peripheral area of said cylindrical roll to enable telescopic application of said sleeve.

2. A roll device comprising, a pair of opposed relatively movable roll halves, the periphery of said roll halves collectively defining a generally cylindrical roll having a central longitudinal axis, each half having a plurality of internal transverse brackets fixed at longitudinally spaced positions therein and opposing corresponding brackets in the opposed half to form spaced apart pairs of brackets, a rst shaft extending longitudinally through said roll and positioned on one side of and parallel with the longitudinal axis of said roll, said shaft pivotally connecting said brackets for movement of said roll halves to positions where the exposed peripheral area of said roll halves is less than the peripheral area of said cylindrical roll, a second shaft extending longitudinally through said roll, said second shaft being parallel with said roll axis and disposed on an opposite side of said axis from said rst shaft, each of said brackets having a pair of opposed cam -engageable surfaces disposed on opposite sides of said second shaft, and a pair of diametrically opposed cams fixed on said second shaft adjacent each pair of opposed brackets, each cam engaging the opposed surfaces of a bracket to lock said roll halves in said cylindrical roll, and means for rotating said second shaft whereby said cams pivot said roll halves about said first shaft into said position.

3. The roll device defined in claim 2 wherein adjacent edges of said roll halves are provided with a plurality of alternately spaced apart fingersy which are adapted to intert when said roll is moved into said position.

4. A roll device, comprising, a pair of hollow opposed roll halves together defining a generally cylindrical outer peripheral roll surface having a central longitudinal axis and adapted to receive a closely tting flexible cylindrical sleeve thereon, means pivotally connecting the roll halves together atone side of the longitudinal axis thereof within the peripheral surface thereof for collapsing movement about an axis parallel to said longitudinal axis to out of round positions where the outer exposed peripheral surface thereof is less than said cylindrical surface to enable telescopic application of said sleeve, a cam shaft within said peripheral surface parallel to said longitudinal axis and disposed on the opposite side thereof, and cooperating cam means on the cam shaft and roll halves for moving the latter between the collapsed out of round positions and the expanded positions for tightly fitting within said sleeve.

References Cited by the Examiner UNITED STATES PATENTS 899,530 9/08 Hansen a 242-72 1,905,178 4/ 33 Kohler 242-72 2,285,116 6/42 Grupe 101-378 2,471,934 5/49 Chudner 5l-l94 WALTER A. SCHEEL, Primary Examiner.

I. D. BEIN, Examiner. 

1. A ROLL DEVICE COMPRISING, A PAIR OF OPPOSED RELATIVELY MOVABLE ROLL HALVES, THE PERIPHERY OF SAID ROLL HALVES COLLECTIVELY DEFINING A GENERALLY CYLINDRICAL ROLL HAVING A CENTRAL LONGITUDINAL AXIS, A CLOSELY FITTING CYLINDRICAL FLOOR TREATING SLEEVE ON SAID CYLINDRICAL ROLL, MEANS PIVOTALLY CONNECTING SAID ROLL HALVES ON ONE SIDE OF SAID LONGITUDINAL AXIS, AND CAM MEANS ASSOCIATED WITH SAID ROLL HALVES ON A DIAMETRICALLY OPPOSED SIDE OF SAID LONGITUDINAL AXIS FOR MOVING SAID ROLL HALVES TO POSITIONS WHERE THE EXPOSED PERIPHERAL AREA OF SAID ROLL HALVES IS SUBSTANTIALLY LESS THAN THE PERIPHERAL AREA OF OF SAID CYLINDRICAL ROLL TO ENABLE TELESCOPIC APPLICATION OF SAID SLEEVE. 